I hope this helps. How these files can get out of sync or how they even can be differentiated is something I don’t understand. Court Shoell November 03, 2009 # re: Error Creating Control Errors in the ASP.NET Designer Solution So I figured out the problem with controls and the designer not working right. Change code inside from: public partial class foldername_unrenamedname : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } } to current public partial class newfoldername_renamedname : System.Web.UI.Page { protected void click site

Error Creating Control Object Reference Not Set To An Instance Of An Object

Workarounds, Bugs, Visual Studio Related Posts Web .NET Meet the New Create Project Wizard for UI for ASP.NET AJAX Mobile Save Time with NuGet Packages for UI for Xamarin Comments Comments However, without a sample it might be hard to reproduce the issue on our side. I'll see if I can put together some simple code, but I know at one time I had the page stripped down to only an edit box (and did the same Symbols instead of foonotes numbers Does Zootopia have an intentional Breaking Bad reference?

Since I had just upgraded my ASP.NET AJAX controls to the latest version yesterday, the local cached version was still the prior version. Email us at [email protected] or call +1 (818) 844-3383 between 7:30AM and 4:30PM Pacific Time. However, checking for the existence of Context and Context.Session method is more resilient since we’re checking the object before accessing it. Error Creating Control Unknown Server Tag c# asp.net share|improve this question edited Sep 6 '11 at 23:24 griegs 15.6k2081163 asked Sep 6 '11 at 23:22 l--''''''---------'''''''''''' 14k169439750 In Design Mode, what does the ToolTip say

Reopen the designer and the errors should be gone. 6 years ago Reply JohnH I was confused somewhat by the initial post. You'll get similar errors to this in xaml and winforms under similar conditions. I've found that if I change the name of the "Inherits" file (to something that's wrong), and then change it back, suddenly the page works. look at this site The source view has its own bugs though :( Like you said, we keep adding new features on top of a rotting foundation.

rat February 17, 2009 # Error Creating Control Errors in the ASP.NET Desig... Error Creating Control Reportviewer Thanks, Jinal Patel. 6 years ago Reply JohnH I am getting this error with the release version of VS 2010. I upgraded the project into VS10 and while the project builds fine, I cant open any of the web pages in the designer. Edit - 1/23/2012 This problem seemed to persist in later days, and I finally found a good work around.

Error Creating Control Failed To Create Designer

Can you tell which control it is from the Source view? try this Thanks, King Wilder taylor 3 posts Member since: Nov 2008 Posted 03 Apr 2012 Link to this post I had a similar issue. Error Creating Control Object Reference Not Set To An Instance Of An Object How does the spell "Find Steed" work with Aura of Vitality? Error Creating Control Cannot Find Web Project Item LukeT sent me the sample proeject and it turned out that he did have code inside the OnInit() method.

Specifically I’d like to be able to set extender control properties without having to switch into the designer. Previously i installed RC release on same machine. Another Error Creating Control in the Design View with Object Reference Not Set in Visual Studio 2010 ★★★★★★★★★★★★★★★ May 6, 2010 by Web Development Tools Microsoft // 11 Comments 0 0 http://napkc.com/error-creating/error-creating-control-visual-studio-2010-design-view.php My Solution At first I thought it had worked, but when I closed and re-opened the solution, the web app still showed those "error creating control" errors in design view.

Could you provide me with a small sample and exact steps that I should do to reproduce the issue with my IDE?Thanks, Vest Jerry Rodriguez 07.12.2010 Vest,This only happens to a Error Creating Control Object Reference In Visual Studio 2010 Thanks John H 6 years ago Reply NickH I'm also getting the "Error Creating Control" in Design View on vs2010 (worked fine in 2008 and page runs fine), but not with And I found a solution that worked for me, but it might not be readily available to fix for everyone, I'll explain.

Do you have code inside the OnInit() method at all?

With VS10 they're going to write it in WPF, and you know what that means: a whole new pile of bugs on top of the old one. About Us Connect with DevExpress BlogsUpcomingEventsTrainingWebinars Learn More about DevExpress About Us News User Comments Case Studies Our Awards Reviews & Publications MVP Program Contact Us Support Center FAQ Training Events As with the other guys, everything works fine at run-time. Error Creating Control Gridview1 But when I dragged a RadScheduler on the page, it displayed amuch more helpful message.

Whether using WPF, ASP.NET, WinForms, HTML5 or Windows 10, DevExpress tools help you build and deliver your best in the shortest time possible. Web.SessionStateModule or a custom session state module is included in the \\ section in the application configuration.”. Algunos accesibles en tiempo de diseño y otros solo en tiempo de ejecución. I have the same problema in all the forms.

It could be a custom class that isn't aliased correctly into the designer's mark-up.I've seen this also occur if your constructor is doing something that's got a dependency on some external It would be killer if more focus could go into bringing the markup editor on par in terms of support functionality that the designer supports (like extenders, many of the localization Please refer to the DevExpress.com Website Terms of Use for more information.